Improvement in base-burning fire-place heaters



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" JAMES SPEAR.v

, Base Burning Fire Place Heaters.' N0. 122,863.r Patentedlan.l6,1872.

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Base Burning Fire Place Heaters.

N0. 122,863. Pa-ten'tedlan.16,1872.

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. Base Burning Fire Place Heaters.

N0. 122,863, l l I Patented-Jan.16,1872.'-

UNITED STATES PATENT GEEIGE.

JAMES SPEAR, OF PHILADELPHIA,` PENNSYLVANIA.

IMPROVEMENT IN BASE-BURNING FIRE-PLACE HEATERS.

Specication forming part of Letters Patent No. 122,863, dated January 16, 1872.

Speciication describing certain Improvements in Fire-Place Heaters, invented by JAMES SPEAR, of No. 1116 Market street, Philadelphia, Pennsylvania.

My invention consists in the construction of the front movable circle or border in two parts, so as to facilitate the iixing of the heater within the fire-place; also, in the arrangement of a movable damper in the top of the heater casing; also, in the regulatingdamper applied to the doors opening into the dust-chamber also, in the arrangement of a lower row of mica windows; also, in the construction of the grate.

Referring to the drawing making part of this specification, Figure 1 is a front view of the fireplace heater, showing the chimney-nues behind in section. Fig. 2 is a section through the heater on line x1; also showing the top damper beyond in section. Fig. 3 is a plan of the re-place heater partly in section, with the outer frame removed. Fig. 4 is a view of the outer frame by itself. Fig. 5 is a plan of the stove, showing the operation of connecting the stove-pipe joints. Fig. 6 is a plan of the top ornamental plate. Fig. 7 is a plan of the top damper. Fig'. 8 is avertical section through the heater from front to rear, on the center line.

In Fig. 1, A is the top ornamental plate. It revolves on the top of the stove, so that the opening a', shown in Fig. 6, can be brought to the front when filling the reservoir, and then revolved to the back ofthe stove, leaving the ornamental portion a? in front. B is the sheet iron casing surrounding the reservoir; b', a register for admitting cold air. The lower part of the body of the stove G is of cast-iron, inclining inward toward the top, and fitted with hinged mica windows c. The section oi' the body D below contains the irepot G, below the mouth of which is suspended the grate. (See Fig. 2.) This grate consists of a central circular part, e1,pivoted at e2 to a surrounding ring, e3, which extends beyond the mouth of the iire-pot G to prevent the fire falling out, and at a sufficient distance therefrom to permit of the removal of cinders and clinkers through the opening e5. This ring e3 turns on a center pivot, e4, thus permitting of the grate being rocked or dumped at will. Above the base S is a section of the stove T in the form 0f a frustum of a cone, inclining inward at an acute angle, meeting the inverted section D, which contains the fire-pot. The section D sometimes has a iirebriek lining. This section T contains a row of mica windows, H, which gives at all times an uninterrupted view of the state of the re upon the` grate e1, and an additional illumination therefrom. The grate is fully described in my patent of March 1, 1870. The hot air and smoke from the ire pass into the pipe K, down radiator Kl into dustchamv ber K2, around the back of the ash-drawer K3 into dust-chamber K4, up radiator K5 and out of pipe K6 to the chimney. By turning the damper in the short pipe K7 the gas passes at once into K5 without making the circuit of the radiator K1. At the front of the dust-chambers K2 K4 are hinged doors M, made with registers m. These are for regulating the draught, which can be done better in this way than by opening the door M, which is liable to close with the draught or swing wide open. These registers m can be set with the exactness required, according to the draught of the chimney. In Fig. 3 is shown the dust-damper N. It is opened by the handle a in front so as to uncover the opening communicating between the ash-pit K3 and dust-chamber K4 whenever the grate is shaken or the ash-drawer removed. To the base ofthe stove is bolted the cast-iron inner frame or arch O by bolts o', (see Fig. 2,) and to it is riveted the sheet-iron 'casing P. Two cast-iron grooves, p1, are riveted to the topof the casing, in which slides the upper damper-plate p2 upon the lower grated plate p3. Both these plates are removable, as shown in Fig. 7. The opening to the reservoir Q is to the front and at the top immediately beneath the ornamental arch, as shown in dotted lines, Fig. 3. It inclines backward toward the center of the stove as it descends toward the rirepot. To the rear of the stove is seen, in Fig. 1, a section through the chimney showing the smokediue u; also, the hot-air flue fu, which conveys the heated air passing through the damper p2 up into the room above. When the heater is put in its place the short stove-pipe o connects the smoke-pipe K6 with the iiue u.

I will now describe the mode of fixing the heater in the fire-place. The front arch R, if it has not been packed separate, is rst removed by unscrewing the bolts from the lugs r. They ornamental plate A is taken off; the damper shown in Fig. 7 removed. The heater is then set in its place under the mantel, and the Workman introduces his arm, as shown in Fig. 5, and, grasping the pipe t', connects it to the smoke-pipe K6. The damper, ornamental plate, and front arch are then replaced. By this movable damper I avoid cutting a hole through the sheet-iron casing for the purpose of inserting the arm to connect the pipe. When these arm-holes are cut through the casing they are difficult to close again, and the heat escapes through them. By the use of my damper, entirely removable from the casing I), I overcome this difficulty, and thereby avoid the necessity of fixing a damper in the hot-air iiue leading to the room above. Y

This construction of stove not only affords convenient access to the pipe c', but brings it into View ofthe Workman during the operation.

'Another advantage gained is that when the galvanized casing is riveted to the inner arch o, and this arch secured by the bolts to the base, the sheet-iron casing has all the necessary strength to retain the damper in its position, and also for shipment, independent of the outside ornamental frame R, the stove can be shipped safely, and the outer ornamental arch R, which is finely iinished, can be Wrapped in paper and packed separately.

What I claim as my invention, and desire to secure by Letters Patent, is

l. The outer removable frame R, the inner iiXed frame O, and casing P, arranged in combination in a fire-place heater, as herein described. l

2. The combination of the casing l? with a removable damper, p2, and plate p3, for the purpose herein described.

3. The combination, in a fire-place heater, of the lower roW of mica Windows H, inclining inward, as shown, With the opening e5 and the grate extending beyond the mouth of the firepot, as herein described.

4. The ornamental plate A turning in a groove on the top of the stove, so as to bring the open part al to the front While filling the reservoir, and the ornamental part a2 at other times, as herein described.

JAMES SPEAR.

Witnesses JN0. P. LEY, 

